.biaodan{width:800px;height:600px;margin:30px auto;font-size:18px;color:#fff;margin-top:50px;}
.biaodan .tiaozheng{width:300px;height:25px;background:rgba(0,0,0,0);outline: none;color:#fff;padding-left:10px;
border:0;border-bottom:1px solid #ccc;}
.tiaozheng2{margin-left:10px;}
.tianjia{display: none;}
.close{width:70px;height:70px;position:absolute;right:72px;top:52px;background:url("../images/close.png") no-repeat;}